Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Whether you’re building a custom woodworking jig, securing a panel on your RV, or quickly assembling flat‑pack furniture, these A2 stainless steel wing nuts let you tighten and loosen connections entirely by hand. The butterfly head provides a solid, comfortable grip so you can make adjustments fast — no wrench required. Crafted from genuine 304 (A2) stainless steel, they resist rust and corrosion in damp garages, outdoor projects, and coastal environments far better than zinc‑plated hardware. From M4 for delicate electronics stands up to M20 for heavy‑duty shop fixtures, there’s a size ready for your bolt. If you value speed, reliability, and freedom from tool clutter, these DIN‑315 metric wing nuts are the smart upgrade your hardware kit has been missing.
| Material | A2 Stainless Steel (304 Grade) |
|---|---|
| Standard | DIN 315 |
| Head Style | Butterfly / Wing |
| Thread Type | Metric Coarse (Standard Pitch) |
| Available Sizes | M4, M5, M6, M8, M10, M12, M16, M20 |
| Measurement System | Metric |
| Finish | Polished Stainless |
| Country of Manufacture | China |
| Brand | GooBetter |
A2 is the European designation for 304 stainless steel, an austenitic alloy containing chromium and nickel. It provides excellent resistance to oxidation and corrosion from moisture, mild chemicals, and outdoor exposure. Unlike zinc‑plated carbon steel, A2 will not red‑rust over time under normal conditions, making it a reliable choice for both indoor and sheltered outdoor projects. For saltwater or marine environments, we recommend upgrading to A4 (316) stainless.
Absolutely. The butterfly‑shaped head is designed to give your fingers excellent leverage. For most applications, you can achieve a firm, vibration‑resistant fit without tools. If you need extra torque for a permanent or high‑vibration joint, you can snug the nut further with a wrench or pliers without damaging the wings during normal use.
Yes, as long as your bolt has standard metric coarse threads. The DIN 315 specification guarantees proper thread engagement with bolts and screws of the same nominal diameter (M4, M5, M6, M8, M10, M12, M16, M20). Please confirm the thread size stamped on your bolt head or measure before ordering. These wing nuts are not compatible with inch (UNC/UNF) threads or fine‑pitch metric threads.
This listing allows you to select the exact size you need. You will receive one or more wing nuts of the chosen M4–M20 size, depending on the quantity you select. If you need a mix of sizes, add the individual options to your cart. Each wing nut arrives in brand‑new condition, sealed in protective packaging to prevent scratches.
A2 stainless steel performs very well outdoors, including in rain and humid climates. It resists rust far better than plain or zinc‑coated steel. However, in direct constant saltwater spray or chemical exposure, surface staining can eventually appear. For those extremes, A4 (316) is a better choice. For typical backyard projects, RVs, trailers, and garden structures, these A2 wing nuts deliver long‑term durability.
